a, the name for area
b, a letter much less used
c, a constant now called b
d, in calculus abused
e, for exponential growth
f and g, they’re functions both
and so we get to h
– – – – – – – – – – – – – –
h, the one that tends to 0
but it never quite gets there
i and j, are indices
k, with h a jolly pair
then a lot we will skip past
x and y are here at last
and we’re learning math so fast.